When a pure technology upgrade is planned without any application change, or some performance improvements via patches or parameter changes are done to a critical production database it is very important to test the patch, upgrade or the parameter change.
This includes a test infrastructure setup with database, application and web tier components.
This is not only expensive but also tedious to build, validate and use it for testing.
The solution is RAT – Real Application Testing which can be used to capture the workload from the production database and replay on the test database.
Advantages:
1. No application or web tier infrastructure need to be setup
2. The Testing can entirely be done by DBAs
3. Much superior to testing the application with simulated load or with scripts
Tuesday, August 5, 2008
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